I beveled the leading edges of the nose ribs tonight. I also bent two of the nose rib flanges, along with flames fire and aft of two ribs. These rib flange bends are required because the inside edge of the HS skins are angled to follow the shape of the Vertical Stabilizer; at the leading edge the skins are further outboard, and at the aft end they are more inboard. The ribs follow the edge of the skins, so the inboard most ribs are at an angle to the spar, hence the need to angle the flanges.